Rolling mill roll



0t.26,194s. F, M SCHARQF 2,452,266

ROLLING MILL ROLL Filed June '7, 1944 Patented Oct. 26, 1948 ROLLING Lacm.

Fritz M. Schar-if, Lorain, Ohio, assigner to Na- .tional Tube Company, acorporation of New Jersey v Application June 7, 1944, Serial No.539,098v

is concentrated at corners of the slot in the face" member, causingcracks to form therein at such points, thereby necessitating discardingsuch face members before the outer fa-ces thereof are appreciably worn."

It is-accordingly an object of this invention to overcome the foregoingdisadvantages of the keyed connection between the face member and thespindle member of composite rolling mill rolls.

It is another object to provide a composite roll which is not subjecttogcracks resulting from the transmission of force through the drivingconnection between face member and the spindle member thereof.

It is a further object of the present invention to provide a compositerolling 'mill roll having an improved driving connection between thecomponent parts thereof.

The foregoing and further objects will be apparent from thespecification and drawings wherein: I

Figure l is an elevational view of the roll assembly of my invention,partly in section;

Figure 2 is a section on lines II-II of Figure 1; Figure 3 is anenlarged partial section of the ring and pinassembly; and

Figures 4 and 5 are views of the split ring and mounting ring of myimproved assembly.

Referring more particularly to the drawings, the numeral 2 indicates acomposite roll having a face member 3 and a spindle or shaft d. Spindlei may have its end formed into wobblers 5 with adjacent necks 6 and 6aand with the'intermediate portion between the necks machined to providestepped diameters l, 8, and 9 with shoulders Ill and II therebetween.Near the outer end of the diameter portion 9 adjacent the neck 6a,

`there is provided a grooved portion I2, the periphery I3 of which isnoncircular and preferably substantially squarel as shown in Figure 2.

The annular face member 3 is disposed on the spindle i and has a bore I5therethrough machined to provide stepped counterbores la, 8a, and 9a,and shoulders Ilia and IIa, which closely engage the diameters l, 8, and9, and the shoulders I0 and Ii of the spindle t. A counterbore I6 isprovided in the facemembe'r 3 at the opp?- site end from the shoulderIa. The counterbore I6 surrounds the .groove I2 and is of such depthsthat the bottom I'l thereof substantially coincides with the inner endI8 of the groove I2.

Disposed in the counterbore It and the groove,

I2 is a split ring or drive plate 20 having the inner surface 2i thereofmachined to closely engage the periphery I3 of the groove I2. Around theouterl surface thereof, there are provided a plurality of semi-circulargrooves 22. A housing ring 25 surrounds the split ring 2@ and has atight fit therewith'. The ring 25 has a plurality of semi-circulargrooves 26 therein on the inner side thereof of the same size as thegrooves 22 in the split ring ZU and which coincide therewith and withholes 30 in the face members 3 for the reception of pins 3i. Pins 3l aredisposed in the matchingK grooves 22 and 2G and are amxed to the splitring 20 and housing 25 by suitable means such as welding, as indicatedat 32.

In assembling a, roll embodying the principles ofthis invention, aspindle member is obtained with the inner portion thereof machined toprovidestepped diameters l, 8, and 9, with shoulders i0 and IItherebetween. A groove I2 is machined therein near the outer end ofthediameter 9 adjacent the neck Sa having aperiphery which is preferablynon-circular and preferably substantially square. The face member 3having a bore therethrough is counterbored to provide clo'se engagementwith the stepped diameters l, 8, and 9, and the shoulders I@ and II ofthe spindle d.

Face member 3 is then positioned on the spindle i so that the shouldersI and ita, II and Ila' are closely engaged. The split ring or Adrivingplate 20 is then positioned in the groove I2 and the counterbore I6 andthe housing ring 25 which has been machined to tightly engage thesplit-ring is then placed therearound. A plurality of' holes are thendrilled through the split ring 20 and the housing ring 25 at thejuncture thereof and into the face member 3. After the holes have beensuitably counterbored, pins 3| are inserted therein and welded to thesplit ring 2li and the housing ring 25.

It is now obvious that rotation of the shaft or spindle d will betransmitted to the face member 3 through the split ring or half drivingplates 20. Due to the close engagement of the split ring 20 and thelperiphery I3 of the groove I2, there will be no relative `motiontherebetween nor between the split ring 20 and the face member 3 due tothe tight t of the pins .3i in the holes 30.

' claims.

I claim:

1. A composite roll comprising a spindle member having an annular groovetherein, the inner periphery of which is non-circular, and a face membermounted on said spindle having a counterbore at one end thereofsurrounding said groove, Aa split ring disposed in said groove and saidcounterbore, the inner periphery of said split' ring having a close titwith the periphery of said groove, a ring disposed around said splitring and means for securing said ring and said split ring to said facemember.

2. A composite roll, as in claim l, wherein the periphery of the grooveandthe inner periphery of the split ring is substantially square.

3. A composite roll comprising a spindle vmember having an annulargroove therein, a shoulder on said spindle at a spaced point from saidgroove, the periphery of said groove being non-circular, and a facemember mounted on said spindle member, one end of said face memberengaging said shoulder and having a counterbore at the opposite endthereof surrounding said groove, a split ring disposed in said grooveand said counterbore, the periphery of said split ring engaging theperiphery of said groove, a ring disposed around said split ring andmeans for securing said ring and said split ring to said face membertoform a driving connection between said face member and said spindlemember.

4. A composite roll, as in claim 3, wherein the periphery of the grooveand the inner periphery of the split ring is substantially square.

5. A composite roll comprising a spindle member having an annular groovetherein, a shoulder on said spindle at a spaced point from said groove,

the periphery of the groove being substantially square, and a rollmember mounted on sold spindle and having a counterbore at each endthereof, one of said counterbores engaging said shoulder and the othersurrounding said groove, a split ring disposed in said groove and saidlast mentioned counterbore engaging the periphery of said groove, a ringldisposed around said split ring in engagement therewith and meanssecuring said ring and said split ring to said face member to form adriving connection between said face-,f

member and said spindle member.

6. A composite roll comprising a spindle member having an annular groovetherein, substantially the entire inner periphery of the groove beingnon-circular, and aproll member mounted on said spindle having an'endface adjacent said groove, a split ring disposed in said groove andabutting said end face, theinner periphery of said split ring having aclose lit with the non-circular periphery of said groove, thenon-circular periphery of Athe groove and the contacting inner peripheryof the split ring combining to prevent relative rotation therebetweenand means securing said ring to said roll member to establish a drivingconnection between said roll member and said spindle member.

FRITZ M. SCHARFE'.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,302,497 Barbour May 6, 19191,670,381 Rogers May 22, 1928 1,739,939 Baehr Dec. 17, 1929 4o 2,026,454Benzing Dec. 31, 1935 FOREIGN PATENTS Number Country Date 10,989 GermanySept. 18,' 1880 265,289 Germany Oct. 7, 1913 Germany Jan. 14, 1928

